Unless one understands this simple fact, that the soul is different from this body, the soul is eternal, the body is temporary, changing... Because without understanding this, there is no spiritual education.
Lecture on BG 2.13-17 -- Los Angeles, November 29, 1968: This body will be changed. Tathā dehāntara-prāptiḥ [Bg. 2.13]. As the parents of this child... Now she is, say, one-feet long only. When this child will grow five feet long, the father and mother, will they cry, "Oh, my child! Where is my child, that one-feet long?" He knows. The parents know that my child is there, but changed the body. This is a fact. Similarly, "You are lamenting on the body of your grandfather and teacher, even they change their body, what is the cause of lamentation? They will exist." This is the beginning of instruction of Bhagavad-gītā or spiritual instruction. Unless one understands this simple fact, that the soul is different from this body, the soul is eternal, the body is temporary, changing... Because without understanding this, there is no spiritual education. A false education. If one identifies with this body, there is no understanding of spiritual knowledge.